import java.util.HashMap;
import java.util.Map;

public class MapTest {
    public static void main(String[] args) {
        Map<String, Employee> staff = new HashMap<>();
        staff.put("144-25-5464", new Employee("Amy Lee"));
        staff.put("567-24-2546", new Employee("Harry Hacker"));
        staff.put("157-62-7953", new Employee("Gary Cooper"));
        staff.put("456-62-5527", new Employee("Francesca Cruz"));

        // Print all entries
        System.out.println(staff);

        // Remove an entry
        staff.remove("567-24-2546");

        // Replace an entry
        staff.put("456-62-5527", new Employee("Francesca Miller"));

        // Loop up a value
        System.out.println(staff.get("157-62-7953"));

        // Iterate through all entries
        staff.forEach((k, v) -> {
            System.out.println("key=" + k + ", value=" + v);
        });
    }
}
